The current I in an electrical conductor varies inversely as the resistance R of the conductor

I = k/R, where k is constant

The current is 1/5 A when the resistance is 5000 ohms that is

1/5 = k/5000

we solve for k

k = 1000

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we know that R = 3200 ohms and we need to find I

since I = 1000/R we have I = 1000/3200 = 0.3125 A

when the resistance is 3200 ohms the current is 0.3125 ampere.